Printing machine



(No Model.) 2 Sheets-Sheet 1.

W. H. R.'TOYE. PRINTING MACHINE.

No. 538,852. Patented May '7, 1 895.

m: Nbims rzrzns 00., Pumauwou WASHINGTON. nv cv (No Model.) I

Patented May 7, 189 5.

9m t e e h S W e e h s 2 m I OH TA .M RG m HT N 1 WE P E b ulll'ro'ssqss:

(Saw- .7

0.. wnsumsrou o c -U ITED STATES- WILLIAM H. R. TOYE, OF PHILADELPHIA,PENNSYLVANIA, ASSIGNOR TO HIM- Fries.

SELF, ROBERT P. BROWN, AND EDWARD Ii. BAILEY, OF SAME PLACE.

PRINTING-MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 538,852, dated May 7,1895. Application filed June 1,1894. semi No. 513,142. (No modeL;

To all whom it may concern:

Be it known that 1, WILLIAM. H. R. TOYE, a citizen of the United States,residing in the city and county of Philadelphia, in the State ofPennsylvania, have invented certain new and useful Improvements inPrinting-Machines, of which the following is a true and exactdescription, reference being had to the accompanying drawings, whichform a part thereof.

My invention relates to printing machines, and particularly'to such'asare designed to print in colors, and will be best uudcrstoodas explainedin connection with the accompanying drawings,-in which Figure 1 is aside view, conventionaliz-ed, of a printing machine constructedaccording to my invention. Fig. 2 is asimilar view to that shown in Fig.1, illustrating a-sornewhat 2o modified construction; and Fig. 3 is aView of a detail.

F is asuitable frame, shown in dotted lines, on which are supported twoor more printing couples (two being shown) each consisting of animpression cylinder I and a type cylinder T. These cylinders are showneach divided into two corresponding sections i 1 ,2729, &c.

R are inking rolls, a set being provided for each section.

tween the printing couples, and it consists of a hubless wheel or. rim,and has one more set of gripper mechanisms 0 than there are sections onthe impression cylinders, and as the 5 distance between each set ofgrippers is the same as the breadth of a section, the length of thecarrier is greater by the breadth of one section than the sum of thebreadths of the sections, thus forming an alternating carrier,

that is, one which will retard the sheet and so present it to adifferent set of types at every revolution. In the construction shown,the length of the carrier is five times the breadth of a section 1" orIf, there being four 5 of these corresponding type and packing sections.Suitable means are provided for separating the cylinders at intervals sothat the sheet can be carried between them without re ceiving animpression so as to permit of double 5o rolling of the type surfaces,and also so that the sheets may always be printed on in the same order,a matter of great consequence in color printing.

0 is the carrier for conveying sheets be- In Fig. 1, A isthe driveshaft, connected through suitable gears A A to the impression cylindersI I. On the shaft of the gear A are cams K. k k are links operated bythe cams K, in a welt known manner, to move away the type cylinders andseparate the printing couples at regular intervals. In this constructionthe inking rolls R are supported in a well known manner on a frameconnected to the journal boxes of the type cylinder, and are movedtoward and from this cylinder by means of cams on the cylinder shaft.This is a well known construction, andI have not deemed it necessary toillustrate it specifi call Iii Fig, 2, I have shown a modifiedconstruction wherein the type cylinders are stationary and theimpression cylinders movable. Here the power of the drive shaft A iscommunicated to the cylinders I I through gears A which are pivoted onboxes, so connected by links to the axes of the drive shaft and thecylinders I I, that they will always be in engagement with both. K K arescams, similar to the cams K in Fig. 1, and serve, through the medium ofleversf pivoted at y, and

links f pivoted at f to the toggle linksf, to move the impressioncylinders I I into and out of contact with the type cylinders. Theparticular connections by which the couples are separated are old, and Isimply illustrate them to show that it is possible to make either thetype or the impression cylinder movable away from its coacting cylinder.I prefer, however, the construction shown in Fig. 1. The rimless wheelis supported on small rolls, as s s, which I preferably make adjustable,as shown.

In the construction illustrated in Fig. 1, I provide the carrier withexternal gear teeth 0' which mesh with teeth 5' on the cylinders TT, andthe carrier is driven thereby. Gear teeth on the cylinders T T mesh withthe teeth a -on the impression cylinders and receive their motiontherefrom. The intermeshing gear teeth are of such size that they willnever entirely draw out of mesh when the couples are separated as isusual. However, as one of the type cylinders T is always in closeengagement with the carrier, and its coacting cylinder I, there will beno danger of any lost motion.

In Fig. 2 the arrangement is substantially the same, except that theimpression cylinders move, instead of the type cylinders. Their gearteeth, however, do notdraw out of mesh, and one printing couple isalways engaged and power directly transmitted. In order to make perfectregister in case the carrier C should expand, as on account of heat, Iprefer to make the gripper mechanism radially adjustable.

In Fig. 3 the gripper rod and the shaft 0 of the grippers themselves aremounted in a block C. This block is guided radially in slots in the rimor wheel 0, and means, as a screw 0 arranged substantially as shownenables the operator to adjust the block in its guides or slots 0 I alsoprefer to arrange the dclivery board D, within the path of travel of thecarrier, so as to save valuable space.

F is the free board, and I have indicated at P Fig.1 alever providedwith pins pp which are adapted to trip the grippers at proper times toseize and release a sheet in the usual way, the pin 1) being in positionto operate the grippers to seize and the pin 19' in position to operatethe grippers to releasea sheet. This lever I is properly operated by acam (not shown) on the shaft of gear wheel A in the usual manner tothrow it into and out of op eration.

While I have shown my printing machine composed of two printing couples,the cylinders of which are each divided into sections, it will, ofcourse, be evident that there may be three or more printing couplesinstead of two, as shown, and also that each cylinder may be dividedinto more than two sections, or, if desired, each cylinder may beadapted to print in but one color, being composed of but one section. Inall these cases, however, the carrier will have one more set of grippermechanisms than the whole number of type sections, and the printingcouples will be separated at suitable intervals, so that the sheet willreceive but one impression at each revolution of the carrier.

In operation, a sheet is seized at the point no and is carried around bythe carrier till it is fully printed; being presented to a (litterenttype section at each revolution of the carrier. Each different typesection may print on it in a different color. The sheet is then releasedand falls on the delivery board, which lies within the path of travel ofthe carrier.

By the arrangement of the feed board shown, much space is saved, and bycombining it with a hubless wheel or rim, the printed sheets can beremoved from the side of the press when it is in motion.- It will alsobe noted that by my arrangement the type cylinders are in a positionwhere the plates thereon can be easily gotten at, also by separating thesectional cylinders at proper and regular intervals multiple rolling canbe effected, thus saving many of the rollers usually employed, and atthe same time the colors will always be printed, as has been explained,in the same order.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination with two or more printing couples,consisting of atype and an impression cylinder, each composed of a correspondingsection or sections, of a hubless wheel, adapted to serve as a carrier,and having one more set of grippers than the-whole number of sections onthe impression or type cylinders, the distance between the grippersbeing equal to the breadth of the type section, whereby the sheet willbe presented to a different set of types at each passage between theprinting couples, and means for separating the printing couples atintervals to permit the passage of the sheets without receiving animpression, and so that the sheet will receive but one impression ateach revolution of the carrier.

2. Thecombination with two or more printing couples, consisting of atype and an impression cylinder, each divided into correspondingsections, of a h ubless wheel of greater length than the breadth of thesections, as described, and serving as an alternating carrier, grippermechanism on said carrier, means to adjust said gripper mechanismsradially, and means for separating the printing couple at suitableintervals so that a sheet will pass between the printing couple withoutreceiving an impression.

3. The combination in a printing machine of two or more printingcouples, consisting of a type cylinder T and an impression cylinder I,each divided into corresponding sections, a drive shaft suitable camsthereon, links is operated by the cams and connected to the journalboxes of the type cylinders T. T. and adapted to separate the type fromthe impression cylinder at suitable intervals, a hubless rim serving asa carrier and having one more set of gripper mechanisms than the numberof sections on the impression cylinders the distance between thegrippers being the same as the breadth of a section whereby a sheetcarried by the grippers on said carrier will be presented to a differentsection on each revolution of the carrier, and means for driving thecarrier and the cylinders.

4. The combination in a printing machine of two or more printingcouples, consisting of a type and an impression cylinder, each dividedinto corresponding sections with a hubless wheel of greater length thanthe breadth of the sections as described and serving as an alternatingcarrier, and a delivery board within the line of travel of the carrierand so arranged that printed sheets can be removed from it during theoperation of the machine.

WILLIAM H. R. TOYE.

Witnesses:

ROBERT W. LLOYD, EDWARD F. AYRES.

